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powerpc/eeh: Cleanup on EEH PCI address cache
The patch does cleanup on EEH PCI address cache based on the fact EEH core is the only user of the component. * Cleanup on function names so that they all have prefix "eeh" and looks more short. * Function printk() has been replaced with pr_debug() or pr_warning() accordingly. Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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parent
f8f7d63fd9
commit
3ab96a02e8
5 changed files with 32 additions and 33 deletions
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@ -197,7 +197,7 @@ int __exit eeh_ops_unregister(const char *name);
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unsigned long eeh_check_failure(const volatile void __iomem *token,
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unsigned long val);
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int eeh_dev_check_failure(struct eeh_dev *edev);
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void __init pci_addr_cache_build(void);
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void __init eeh_addr_cache_build(void);
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void eeh_add_device_tree_early(struct device_node *);
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void eeh_add_device_tree_late(struct pci_bus *);
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void eeh_remove_bus_device(struct pci_dev *);
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@ -233,7 +233,7 @@ static inline unsigned long eeh_check_failure(const volatile void __iomem *token
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#define eeh_dev_check_failure(x) (0)
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static inline void pci_addr_cache_build(void) { }
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static inline void eeh_addr_cache_build(void) { }
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static inline void eeh_add_device_tree_early(struct device_node *dn) { }
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@ -47,10 +47,9 @@ extern int rtas_setup_phb(struct pci_controller *phb);
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#ifdef CONFIG_EEH
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void pci_addr_cache_build(void);
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void pci_addr_cache_insert_device(struct pci_dev *dev);
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void pci_addr_cache_remove_device(struct pci_dev *dev);
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struct eeh_dev *pci_addr_cache_get_device(unsigned long addr);
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void eeh_addr_cache_insert_dev(struct pci_dev *dev);
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void eeh_addr_cache_rmv_dev(struct pci_dev *dev);
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struct eeh_dev *eeh_addr_cache_get_dev(unsigned long addr);
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void eeh_slot_error_detail(struct eeh_pe *pe, int severity);
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int eeh_pci_enable(struct eeh_pe *pe, int function);
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int eeh_reset_pe(struct eeh_pe *);
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@ -411,7 +411,7 @@ unsigned long eeh_check_failure(const volatile void __iomem *token, unsigned lon
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/* Finding the phys addr + pci device; this is pretty quick. */
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addr = eeh_token_to_phys((unsigned long __force) token);
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edev = pci_addr_cache_get_device(addr);
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edev = eeh_addr_cache_get_dev(addr);
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if (!edev) {
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eeh_stats.no_device++;
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return val;
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@ -787,7 +787,7 @@ static void eeh_add_device_late(struct pci_dev *dev)
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edev->pdev = dev;
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dev->dev.archdata.edev = edev;
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pci_addr_cache_insert_device(dev);
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eeh_addr_cache_insert_dev(dev);
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eeh_sysfs_add_device(dev);
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}
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@ -844,7 +844,7 @@ static void eeh_remove_device(struct pci_dev *dev)
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pci_dev_put(dev);
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eeh_rmv_from_parent_pe(edev);
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pci_addr_cache_remove_device(dev);
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eeh_addr_cache_rmv_dev(dev);
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eeh_sysfs_remove_device(dev);
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}
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@ -60,7 +60,7 @@ static struct pci_io_addr_cache {
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spinlock_t piar_lock;
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} pci_io_addr_cache_root;
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static inline struct eeh_dev *__pci_addr_cache_get_device(unsigned long addr)
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static inline struct eeh_dev *__eeh_addr_cache_get_device(unsigned long addr)
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{
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struct rb_node *n = pci_io_addr_cache_root.rb_root.rb_node;
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@ -84,7 +84,7 @@ static inline struct eeh_dev *__pci_addr_cache_get_device(unsigned long addr)
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}
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/**
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* pci_addr_cache_get_device - Get device, given only address
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* eeh_addr_cache_get_dev - Get device, given only address
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* @addr: mmio (PIO) phys address or i/o port number
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*
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* Given an mmio phys address, or a port number, find a pci device
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@ -93,13 +93,13 @@ static inline struct eeh_dev *__pci_addr_cache_get_device(unsigned long addr)
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* from zero (that is, they do *not* have pci_io_addr added in).
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* It is safe to call this function within an interrupt.
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*/
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struct eeh_dev *pci_addr_cache_get_device(unsigned long addr)
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struct eeh_dev *eeh_addr_cache_get_dev(unsigned long addr)
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{
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struct eeh_dev *edev;
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unsigned long flags;
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spin_lock_irqsave(&pci_io_addr_cache_root.piar_lock, flags);
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edev = __pci_addr_cache_get_device(addr);
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edev = __eeh_addr_cache_get_device(addr);
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spin_unlock_irqrestore(&pci_io_addr_cache_root.piar_lock, flags);
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return edev;
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}
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@ -109,7 +109,7 @@ struct eeh_dev *pci_addr_cache_get_device(unsigned long addr)
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* Handy-dandy debug print routine, does nothing more
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* than print out the contents of our addr cache.
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*/
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static void pci_addr_cache_print(struct pci_io_addr_cache *cache)
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static void eeh_addr_cache_print(struct pci_io_addr_cache *cache)
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{
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struct rb_node *n;
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int cnt = 0;
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@ -118,7 +118,7 @@ static void pci_addr_cache_print(struct pci_io_addr_cache *cache)
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while (n) {
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struct pci_io_addr_range *piar;
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piar = rb_entry(n, struct pci_io_addr_range, rb_node);
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printk(KERN_DEBUG "PCI: %s addr range %d [%lx-%lx]: %s\n",
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pr_debug("PCI: %s addr range %d [%lx-%lx]: %s\n",
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(piar->flags & IORESOURCE_IO) ? "i/o" : "mem", cnt,
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piar->addr_lo, piar->addr_hi, pci_name(piar->pcidev));
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cnt++;
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@ -129,7 +129,7 @@ static void pci_addr_cache_print(struct pci_io_addr_cache *cache)
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/* Insert address range into the rb tree. */
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static struct pci_io_addr_range *
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pci_addr_cache_insert(struct pci_dev *dev, unsigned long alo,
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eeh_addr_cache_insert(struct pci_dev *dev, unsigned long alo,
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unsigned long ahi, unsigned int flags)
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{
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struct rb_node **p = &pci_io_addr_cache_root.rb_root.rb_node;
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@ -147,7 +147,7 @@ pci_addr_cache_insert(struct pci_dev *dev, unsigned long alo,
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} else {
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if (dev != piar->pcidev ||
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alo != piar->addr_lo || ahi != piar->addr_hi) {
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printk(KERN_WARNING "PIAR: overlapping address range\n");
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pr_warning("PIAR: overlapping address range\n");
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}
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return piar;
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}
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@ -164,7 +164,7 @@ pci_addr_cache_insert(struct pci_dev *dev, unsigned long alo,
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piar->flags = flags;
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#ifdef DEBUG
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printk(KERN_DEBUG "PIAR: insert range=[%lx:%lx] dev=%s\n",
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pr_debug("PIAR: insert range=[%lx:%lx] dev=%s\n",
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alo, ahi, pci_name(dev));
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#endif
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@ -174,7 +174,7 @@ pci_addr_cache_insert(struct pci_dev *dev, unsigned long alo,
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return piar;
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}
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static void __pci_addr_cache_insert_device(struct pci_dev *dev)
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static void __eeh_addr_cache_insert_dev(struct pci_dev *dev)
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{
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struct device_node *dn;
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struct eeh_dev *edev;
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@ -182,7 +182,7 @@ static void __pci_addr_cache_insert_device(struct pci_dev *dev)
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dn = pci_device_to_OF_node(dev);
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if (!dn) {
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printk(KERN_WARNING "PCI: no pci dn found for dev=%s\n", pci_name(dev));
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pr_warning("PCI: no pci dn found for dev=%s\n", pci_name(dev));
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return;
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}
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@ -213,19 +213,19 @@ static void __pci_addr_cache_insert_device(struct pci_dev *dev)
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continue;
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if (start == 0 || ~start == 0 || end == 0 || ~end == 0)
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continue;
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pci_addr_cache_insert(dev, start, end, flags);
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eeh_addr_cache_insert(dev, start, end, flags);
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}
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}
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/**
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* pci_addr_cache_insert_device - Add a device to the address cache
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* eeh_addr_cache_insert_dev - Add a device to the address cache
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* @dev: PCI device whose I/O addresses we are interested in.
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*
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* In order to support the fast lookup of devices based on addresses,
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* we maintain a cache of devices that can be quickly searched.
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* This routine adds a device to that cache.
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*/
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void pci_addr_cache_insert_device(struct pci_dev *dev)
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void eeh_addr_cache_insert_dev(struct pci_dev *dev)
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{
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unsigned long flags;
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@ -234,11 +234,11 @@ void pci_addr_cache_insert_device(struct pci_dev *dev)
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return;
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spin_lock_irqsave(&pci_io_addr_cache_root.piar_lock, flags);
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__pci_addr_cache_insert_device(dev);
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__eeh_addr_cache_insert_dev(dev);
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spin_unlock_irqrestore(&pci_io_addr_cache_root.piar_lock, flags);
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}
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static inline void __pci_addr_cache_remove_device(struct pci_dev *dev)
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static inline void __eeh_addr_cache_rmv_dev(struct pci_dev *dev)
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{
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struct rb_node *n;
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@ -259,7 +259,7 @@ static inline void __pci_addr_cache_remove_device(struct pci_dev *dev)
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}
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/**
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* pci_addr_cache_remove_device - remove pci device from addr cache
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* eeh_addr_cache_rmv_dev - remove pci device from addr cache
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* @dev: device to remove
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*
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* Remove a device from the addr-cache tree.
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@ -267,17 +267,17 @@ static inline void __pci_addr_cache_remove_device(struct pci_dev *dev)
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* the tree multiple times (once per resource).
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* But so what; device removal doesn't need to be that fast.
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*/
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void pci_addr_cache_remove_device(struct pci_dev *dev)
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void eeh_addr_cache_rmv_dev(struct pci_dev *dev)
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{
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unsigned long flags;
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spin_lock_irqsave(&pci_io_addr_cache_root.piar_lock, flags);
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__pci_addr_cache_remove_device(dev);
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__eeh_addr_cache_rmv_dev(dev);
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spin_unlock_irqrestore(&pci_io_addr_cache_root.piar_lock, flags);
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}
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/**
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* pci_addr_cache_build - Build a cache of I/O addresses
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* eeh_addr_cache_build - Build a cache of I/O addresses
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*
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* Build a cache of pci i/o addresses. This cache will be used to
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* find the pci device that corresponds to a given address.
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* Must be run late in boot process, after the pci controllers
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* have been scanned for devices (after all device resources are known).
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*/
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void __init pci_addr_cache_build(void)
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void __init eeh_addr_cache_build(void)
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{
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struct device_node *dn;
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struct eeh_dev *edev;
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@ -294,7 +294,7 @@ void __init pci_addr_cache_build(void)
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spin_lock_init(&pci_io_addr_cache_root.piar_lock);
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for_each_pci_dev(dev) {
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pci_addr_cache_insert_device(dev);
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eeh_addr_cache_insert_dev(dev);
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dn = pci_device_to_OF_node(dev);
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if (!dn)
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#ifdef DEBUG
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/* Verify tree built up above, echo back the list of addrs. */
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pci_addr_cache_print(&pci_io_addr_cache_root);
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eeh_addr_cache_print(&pci_io_addr_cache_root);
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#endif
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}
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@ -73,7 +73,7 @@ void __init pSeries_final_fixup(void)
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{
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pSeries_request_regions();
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pci_addr_cache_build();
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eeh_addr_cache_build();
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}
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/*
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